초록 ▼

A capillary wick for use in capillary evaporators has properties that prevent nucleation inside the body of the wick, resulting in suppression of back-conduction of heat from vapor channels to the liquid reservoir. Use of a central liquid flow channel in the wick is eliminated, and pore size in the

A capillary wick for use in capillary evaporators has properties that prevent nucleation inside the body of the wick, resulting in suppression of back-conduction of heat from vapor channels to the liquid reservoir. Use of a central liquid flow channel in the wick is eliminated, and pore size in the wick is chosen to maximize available pressure for fluid pumping, while preventing nucleation in the wick body. The wick is embodied with different geometries, including cylindrical and flat. A flat capillary evaporator has substantially planar heat input surfaces for convenient mating to planar heat sources. The flat capillary evaporator is capable of being used with working fluids having high vapor pressures (i.e., greater that 10 psia). To contain the pressure of the vaporized working fluid, the opposed planar plates of the evaporator are brazed or sintered to opposing sides of a metal wick. Additionally, a terrestrial loop heat pipe and a loop heat pipe having overall flat geometry are disclosed.

대표청구항 ▼

A capillary wick for use in capillary evaporators has properties that prevent nucleation inside the body of the wick, resulting in suppression of back-conduction of heat from vapor channels to the liquid reservoir. Use of a central liquid flow channel in the wick is eliminated, and pore size in the

A capillary wick for use in capillary evaporators has properties that prevent nucleation inside the body of the wick, resulting in suppression of back-conduction of heat from vapor channels to the liquid reservoir. Use of a central liquid flow channel in the wick is eliminated, and pore size in the wick is chosen to maximize available pressure for fluid pumping, while preventing nucleation in the wick body. The wick is embodied with different geometries, including cylindrical and flat. A flat capillary evaporator has substantially planar heat input surfaces for convenient mating to planar heat sources. The flat capillary evaporator is capable of being used with working fluids having high vapor pressures (i.e., greater that 10 psia). To contain the pressure of the vaporized working fluid, the opposed planar plates of the evaporator are brazed or sintered to opposing sides of a metal wick. Additionally, a terrestrial loop heat pipe and a loop heat pipe having overall flat geometry are disclosed. sembly interface adapted to couple to a die assembly and having a die assembly receiving formation of a predetermined dimension, providing a die assembly with a shank interface and an ejector assembly, the shank interface adapted to couple to the shank at the die assembly interface, and the die assembly interface having a shank assembly engaging formation, the shank assembly engaging formation having a complimentary configuration to the die assembly receiving formation, and securing the die assembly to the shank by engaging the shank engaging formation with the die assembly receiving formation and operatively coupling the ejector assembly to the spool. 9. The method of claim 8, wherein the step of providing a die assembly with a shank interface comprises providing a plurality of die assemblies having the shank interface, and the step of securing the die assembly to the shank comprises securing one of the plurality of die assemblies to the shank. 10. The method of claim 9, wherein: the die assembly includes a die having a mold portion and an adaptor plate, the ejector assembly includes an ejector plate and the shank assembly engaging formation comprises a first flange formed on the adaptor plate and a second flange formed on the ejector plate, the die assembly engaging formation comprises a first slot formed in the shank and a second slot formed in the spool, and the step of securing the die assembly to the shank comprises slideably receiving the first flange within the first slot and the second flange within the second slot. 11. The method of claim 8, comprising providing a cam member for securing the die assembly to the shank. 12. A die assembly for use with in method of claim 8. llowing for thermal expansion and contraction of said one heat exchanger. 8. The cooling system of claim 2 wherein said at least two of said heat exchangers are adapted to the part of a single fluid flow circuit and are connected in fluid communication by a common flow channel.